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改性稻草秸秆活性炭的制备及其对SO2的吸附

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孙黎明, 夏维清, 朱晓帆. 改性稻草秸秆活性炭的制备及其对SO2的吸附[J]. 环境工程学报, 2017, 11(9): 5109-5113. doi: 10.12030/j.cjee.201610129
引用本文: 孙黎明, 夏维清, 朱晓帆. 改性稻草秸秆活性炭的制备及其对SO2的吸附[J]. 环境工程学报, 2017, 11(9): 5109-5113. doi: 10.12030/j.cjee.201610129
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SUN Liming, XIA Weiqing, ZHU Xiaofan. Preparation of activated carbon from modified rice straw and its adsorption of SO2[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5109-5113. doi: 10.12030/j.cjee.201610129
Citation: SUN Liming, XIA Weiqing, ZHU Xiaofan. Preparation of activated carbon from modified rice straw and its adsorption of SO2[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5109-5113. doi: 10.12030/j.cjee.201610129
shu

改性稻草秸秆活性炭的制备及其对SO2的吸附

  • 1.

    四川大学分析测试中心, 成都 610065

  • 基金项目:

  • 中图分类号: X701

Preparation of activated carbon from modified rice straw and its adsorption of SO2

  • 1.

    Analytical and Testing Center, Sichuan University, Chengdu 610065, China

  • Fund Project:

  • 摘要: 以稻草秸秆为原料，在N2氛围中制备活性炭。利用TG/DTG、Boehm滴定、BET比表面积测试、活性炭的工业分析对秸秆在200、300、400、500℃下制备的活性炭形态及其表面化学性质进行了表征。分别比较了原生秸秆、炭化秸秆、乙二胺基秸秆、乙二胺基炭化秸秆用于脱除SO2气体的吸附效果。结果表明：活性炭的炭化得率是随着温度升高而不断下降；随着炭化温度升高，活性炭的pH值、灰分也随之增加，挥发分含量则不断下降，活性炭表面的酸性官能团减少、碱性官能团增多；乙二胺基炭化秸秆的脱硫效果明显，饱和硫容达到了176.4 mg ·g-1。通过研究得出将改性稻草秸秆活性炭应用于烟气脱硫是可行的。
    Abstract: Activated carbon was prepared by using rice straw as raw material under the nitrogen atomosphere condition at 200, 300, 400, 500℃, respectively. The morphology and surface chemical properties of activated carbon were characterized by using TG/DTG, Boehm titration, BET specific surface area test and industrial analysis. The adsorption effect on the removal of SO2 gas from raw straw, carbonized straw, ethylenediamine-based straw and ethylenediamine-carbonized straw were compared respectively. The results showed that the char yield of activated carbon decreased as the temperature increased.With a rise in carbonization temperature, pH value and ash of activated carbon increased while volatile content declined. The acidic functional groups reduced, while the basic functional groups increased on the surface of activated carbon. The results showed that the desulphurization effect of ethylenediamine-based carbonized straw was obvious, and the saturated sulfur capacity reached 176.4 mg ·g-1.It was feasible to apply modified activated carbon from rice straw to flue gas desulfurization by this study.
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  • [1] 杨丹,陈庆国,刘梅,等. 稻草秸秆在环境污染治理中的应用研究[J]. 安徽农业科学,2014,42(32):11467-11469
    [2] 中华人民共和国国家统计局. 中国统计年鉴:2015[M].北京:中国统计出版社,2015
    [3] 郭冬生,黄春红. 近10年来中国农作物秸秆资源量的时空分布与利用模式[J]. 西南农业学报,2016,29(4):948-954
    [4] 王永振,高辉,赵江,等. 秸秆资源综合利用技术概述[J].环境工程,2014,32(S1):730-733
    [5] 刘金培,汪官镇,陈华友,等. 基于VAR模型的PM2.5与其影响因素动态关系研究:以西安市为例[J]. 干旱区资源与环境,2016,30(5):78-84
    [6] BENTAYEBA M, WAGNER V, STEMPFELET M, et al. Association between long-term exposure to air pollution and mortality in France:A 25-year follow-up study[J]. Environment International, 2015, 85:5-14
    [7] 刘婷,杨志山,朱晓帆,等. 改性稻草秸秆对重金属Pb2+吸附作用研究[J]. 环境科学与技术,2012,35(12J):41-44
    [8] 杨琴淋,施文健,周艳. 棉秸秆活性炭吸附水溶性有机污染物研究[J]. 功能材料,2012,43(16):2196-2199
    [9] 韩彬,薛罡,荣达,等. 稻草秸秆基活性炭对苯酚和亚甲基蓝的吸附性能研究[J]. 安徽农业科学,2009,37(7):3196-3199
    [10] LIU Z, JIANG L M, QIU M, et al. Preparation of tetraethylenepentamine modified straw and its adsorption of sulfur dioxide[J]. Fresenius Environmental Bulletin, 2015, 24(12A):4458-4464
    [11] 叶协锋,于晓娜,孟琦,等. 烤烟秸秆炭化后理化特性分析[J]. 烟草科技,2015,48(5):14-18
    [12] 国家质量技术监督局. 木炭和木炭试验方法:GB/T 17664-1999[S].北京:中国标准出版社,1999
    [13] OICKLE A M, GOERTZEN S L, HOPPER K R, et al. Standardization of the Boehm titration:Part Ⅱ. Method of agitation, effect of filtering and dilute titrant[J]. Carbon, 2010, 48(12):3313-3322
    [14] GOERTZEN S L, THERIAULT K D, OICKLE A M, et al. Standardization of the Boehm titration. Part I. CO2 expulsion and endpoint determination[J]. Carbon, 2010, 48(4):1252-1261
    [15] BOEHM H P. Surface oxides on carbon and their analysis:A critical assessment[J]. Carbon, 2002, 40(2):145-149
    [16] 傅旭峰,仲兆平,肖刚,等. 几种生物质热解特性及动力学的对比[J]. 农业工程学报,2009,25(1):199-202
    [17] YANG H P, YAN R, CHEN H P, et al. Characteristics of hemicellulose, cellulose and lignin pyrolysis[J]. Fuel, 2007, 86(12/13):1781-1788
    [18] 姜玉萍,杨晓峰,张兆辉,等. 生物炭对土壤环境及其作物生长影响的研究进展[J]. 浙江农业学报,2013,25(2):410-415
    [19] 王瑞峰,赵立欣,沈玉君,等. 生物炭制备及其对土壤理化性质影响的研究进展[J]. 中国农业科技导报,2015,17(2):126-133
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  • 收稿日期:  2016-12-29
  • 刊出日期:  2017-08-26

改性稻草秸秆活性炭的制备及其对SO2的吸附

  • 1. 四川大学分析测试中心, 成都 610065
  • 收稿日期:  2016-12-29
基金项目:

摘要: 以稻草秸秆为原料，在N2氛围中制备活性炭。利用TG/DTG、Boehm滴定、BET比表面积测试、活性炭的工业分析对秸秆在200、300、400、500℃下制备的活性炭形态及其表面化学性质进行了表征。分别比较了原生秸秆、炭化秸秆、乙二胺基秸秆、乙二胺基炭化秸秆用于脱除SO2气体的吸附效果。结果表明：活性炭的炭化得率是随着温度升高而不断下降；随着炭化温度升高，活性炭的pH值、灰分也随之增加，挥发分含量则不断下降，活性炭表面的酸性官能团减少、碱性官能团增多；乙二胺基炭化秸秆的脱硫效果明显，饱和硫容达到了176.4 mg ·g-1。通过研究得出将改性稻草秸秆活性炭应用于烟气脱硫是可行的。

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